Maintaining SPF and DKIM results even after forwarding! We introduce situations where ARC is helpful in our blog.
ARC (Authenticated Received Chain) is one of the email authentication systems that displays authentication evaluations at each stage when processing emails. In simpler terms, Authenticated Received Chain can be described as a series of verifications of email messages that allows each entity handling the email message to efficiently verify all previously processed entities. ARC, a relatively new protocol published and documented as "Experimental" in RFC8617 in July 2019, enables email validation by the receiving server even when SPF and DKIM have been invalidated by intermediate servers. [Contents] ■ What is ARC (Authenticated Received Chain)? ■ DMARC's ARC ■ How does Authenticated Received Chain help? ■ How does DMARC's ARC work? *For more details, you can view the related links. Please feel free to contact us for more information.
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We have established and operate measurement and monitoring centers in five cities across the country (Sapporo, Niigata, Tokyo, Osaka, and Fukuoka). The measurement and monitoring systems in operation there are also used by major IT companies such as Google and Microsoft, as well as e-commerce sites and mobile companies like Verizon. We monitor the communication status of your web systems from various locations 24/7, analyze the data, optimize it, and support high-speed and stable web operations. We can detect communication failures and server issues, which have been occurring frequently lately, through measurements from across the country and immediately raise alerts. Additionally, we provide a web performance tuning service that ensures the display speed of websites, web applications, and mobile applications is completed within one second nationwide, achieving a 98% yield. Based on statistical quality control, we conduct data collection and analysis, and guarantee the achievement of displaying within one second through genuine performance tuning that addresses issues from the source code. Please feel free to contact us if you have any requests.